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eaf718f3 MU |
1 | #!/usr/bin/perl -w |
2 | ||
3 | # This tool is copyright (c) 2005, Matthias Urlichs. | |
4 | # It is released under the Gnu Public License, version 2. | |
5 | # | |
6 | # The basic idea is to pull and analyze SVN changes. | |
7 | # | |
8 | # Checking out the files is done by a single long-running CVS connection | |
9 | # / server process. | |
10 | # | |
11 | # The head revision is on branch "origin" by default. | |
12 | # You can change that with the '-o' option. | |
13 | ||
14 | require v5.8.0; # for shell-safe open("-|",LIST) | |
15 | use strict; | |
16 | use warnings; | |
17 | use Getopt::Std; | |
18 | use File::Spec; | |
19 | use File::Temp qw(tempfile); | |
20 | use File::Path qw(mkpath); | |
21 | use File::Basename qw(basename dirname); | |
22 | use Time::Local; | |
23 | use IO::Pipe; | |
24 | use POSIX qw(strftime dup2); | |
25 | use IPC::Open2; | |
26 | use SVN::Core; | |
27 | use SVN::Ra; | |
28 | ||
37dcf6de MU |
29 | die "Need CVN:COre 1.2.1 or better" if $SVN::Core::VERSION lt "1.2.1"; |
30 | ||
eaf718f3 MU |
31 | $SIG{'PIPE'}="IGNORE"; |
32 | $ENV{'TZ'}="UTC"; | |
33 | ||
3ef378a6 | 34 | our($opt_h,$opt_o,$opt_v,$opt_u,$opt_C,$opt_i,$opt_m,$opt_M,$opt_t,$opt_T,$opt_b,$opt_s,$opt_l); |
eaf718f3 MU |
35 | |
36 | sub usage() { | |
37 | print STDERR <<END; | |
38 | Usage: ${\basename $0} # fetch/update GIT from CVS | |
3ef378a6 | 39 | [-o branch-for-HEAD] [-h] [-v] [-l max_num_changes] |
eaf718f3 | 40 | [-C GIT_repository] [-t tagname] [-T trunkname] [-b branchname] |
7ee74a99 | 41 | [-i] [-u] [-s start_chg] [-m] [-M regex] [SVN_URL] |
eaf718f3 MU |
42 | END |
43 | exit(1); | |
44 | } | |
45 | ||
3ef378a6 | 46 | getopts("b:C:hil:mM:o:s:t:T:uv") or usage(); |
eaf718f3 MU |
47 | usage if $opt_h; |
48 | ||
49 | my $tag_name = $opt_t || "tags"; | |
50 | my $trunk_name = $opt_T || "trunk"; | |
51 | my $branch_name = $opt_b || "branches"; | |
52 | ||
53 | @ARGV <= 1 or usage(); | |
54 | ||
55 | $opt_o ||= "origin"; | |
3ef378a6 | 56 | $opt_l = 100 unless defined $opt_l; |
eaf718f3 MU |
57 | my $git_tree = $opt_C; |
58 | $git_tree ||= "."; | |
59 | ||
60 | my $cvs_tree; | |
61 | if ($#ARGV == 0) { | |
62 | $cvs_tree = $ARGV[0]; | |
63 | } elsif (-f 'CVS/Repository') { | |
64 | open my $f, '<', 'CVS/Repository' or | |
65 | die 'Failed to open CVS/Repository'; | |
66 | $cvs_tree = <$f>; | |
67 | chomp $cvs_tree; | |
68 | close $f; | |
69 | } else { | |
70 | usage(); | |
71 | } | |
72 | ||
73 | our @mergerx = (); | |
74 | if ($opt_m) { | |
75 | @mergerx = ( qr/\W(?:from|of|merge|merging|merged) (\w+)/i ); | |
76 | } | |
77 | if ($opt_M) { | |
78 | push (@mergerx, qr/$opt_M/); | |
79 | } | |
80 | ||
81 | select(STDERR); $|=1; select(STDOUT); | |
82 | ||
83 | ||
84 | package SVNconn; | |
85 | # Basic SVN connection. | |
86 | # We're only interested in connecting and downloading, so ... | |
87 | ||
88 | use File::Spec; | |
89 | use File::Temp qw(tempfile); | |
90 | use POSIX qw(strftime dup2); | |
91 | ||
92 | sub new { | |
93 | my($what,$repo) = @_; | |
94 | $what=ref($what) if ref($what); | |
95 | ||
96 | my $self = {}; | |
97 | $self->{'buffer'} = ""; | |
98 | bless($self,$what); | |
99 | ||
100 | $repo =~ s#/+$##; | |
101 | $self->{'fullrep'} = $repo; | |
102 | $self->conn(); | |
103 | ||
eaf718f3 MU |
104 | return $self; |
105 | } | |
106 | ||
107 | sub conn { | |
108 | my $self = shift; | |
109 | my $repo = $self->{'fullrep'}; | |
110 | my $s = SVN::Ra->new($repo); | |
111 | ||
112 | die "SVN connection to $repo: $!\n" unless defined $s; | |
113 | $self->{'svn'} = $s; | |
114 | $self->{'repo'} = $repo; | |
115 | $self->{'maxrev'} = $s->get_latest_revnum(); | |
116 | } | |
117 | ||
118 | sub file { | |
119 | my($self,$path,$rev) = @_; | |
120 | my $res; | |
121 | ||
122 | my ($fh, $name) = tempfile('gitsvn.XXXXXX', | |
123 | DIR => File::Spec->tmpdir(), UNLINK => 1); | |
124 | ||
2b5e63d1 | 125 | print "... $rev $path ...\n" if $opt_v; |
f02b3eba | 126 | eval { $self->{'svn'}->get_file($path,$rev,$fh); }; |
8cd4177d | 127 | if ($@ and $@ !~ /Attempted to get checksum/) { |
eaf718f3 MU |
128 | # retry |
129 | $self->conn(); | |
2b5e63d1 | 130 | eval { $self->{'svn'}->get_file($path,$rev,$fh); }; |
eaf718f3 | 131 | }; |
8cd4177d | 132 | return () if $@ and $@ !~ /Attempted to get checksum/; |
2b5e63d1 | 133 | die $@ if $@; |
eaf718f3 MU |
134 | close ($fh); |
135 | ||
136 | return ($name, $res); | |
137 | } | |
138 | ||
139 | ||
140 | package main; | |
141 | ||
142 | my $svn = SVNconn->new($cvs_tree); | |
143 | ||
144 | ||
145 | sub pdate($) { | |
146 | my($d) = @_; | |
147 | $d =~ m#(\d\d\d\d)-(\d\d)-(\d\d)T(\d\d):(\d\d):(\d\d)# | |
148 | or die "Unparseable date: $d\n"; | |
149 | my $y=$1; $y-=1900 if $y>1900; | |
150 | return timegm($6||0,$5,$4,$3,$2-1,$y); | |
151 | } | |
152 | ||
eaf718f3 MU |
153 | sub getwd() { |
154 | my $pwd = `pwd`; | |
155 | chomp $pwd; | |
156 | return $pwd; | |
157 | } | |
158 | ||
159 | ||
160 | sub get_headref($$) { | |
161 | my $name = shift; | |
162 | my $git_dir = shift; | |
163 | my $sha; | |
164 | ||
165 | if (open(C,"$git_dir/refs/heads/$name")) { | |
166 | chomp($sha = <C>); | |
167 | close(C); | |
168 | length($sha) == 40 | |
169 | or die "Cannot get head id for $name ($sha): $!\n"; | |
170 | } | |
171 | return $sha; | |
172 | } | |
173 | ||
174 | ||
175 | -d $git_tree | |
176 | or mkdir($git_tree,0777) | |
177 | or die "Could not create $git_tree: $!"; | |
178 | chdir($git_tree); | |
179 | ||
180 | my $orig_branch = ""; | |
181 | my $forward_master = 0; | |
182 | my %branches; | |
183 | ||
184 | my $git_dir = $ENV{"GIT_DIR"} || ".git"; | |
185 | $git_dir = getwd()."/".$git_dir unless $git_dir =~ m#^/#; | |
186 | $ENV{"GIT_DIR"} = $git_dir; | |
187 | my $orig_git_index; | |
188 | $orig_git_index = $ENV{GIT_INDEX_FILE} if exists $ENV{GIT_INDEX_FILE}; | |
189 | my ($git_ih, $git_index) = tempfile('gitXXXXXX', SUFFIX => '.idx', | |
190 | DIR => File::Spec->tmpdir()); | |
191 | close ($git_ih); | |
192 | $ENV{GIT_INDEX_FILE} = $git_index; | |
193 | my $maxnum = 0; | |
194 | my $last_rev = ""; | |
195 | my $last_branch; | |
7ee74a99 | 196 | my $current_rev = $opt_s ? ($opt_s-1) : 0; |
eaf718f3 MU |
197 | unless(-d $git_dir) { |
198 | system("git-init-db"); | |
199 | die "Cannot init the GIT db at $git_tree: $?\n" if $?; | |
200 | system("git-read-tree"); | |
201 | die "Cannot init an empty tree: $?\n" if $?; | |
202 | ||
203 | $last_branch = $opt_o; | |
204 | $orig_branch = ""; | |
205 | } else { | |
206 | -f "$git_dir/refs/heads/$opt_o" | |
207 | or die "Branch '$opt_o' does not exist.\n". | |
208 | "Either use the correct '-o branch' option,\n". | |
209 | "or import to a new repository.\n"; | |
210 | ||
211 | -f "$git_dir/svn2git" | |
212 | or die "'$git_dir/svn2git' does not exist.\n". | |
213 | "You need that file for incremental imports.\n"; | |
214 | $last_branch = basename(readlink("$git_dir/HEAD")); | |
215 | unless($last_branch) { | |
216 | warn "Cannot read the last branch name: $! -- assuming 'master'\n"; | |
217 | $last_branch = "master"; | |
218 | } | |
219 | $orig_branch = $last_branch; | |
220 | $last_rev = get_headref($orig_branch, $git_dir); | |
221 | if (-f "$git_dir/SVN2GIT_HEAD") { | |
222 | die <<EOM; | |
223 | SVN2GIT_HEAD exists. | |
224 | Make sure your working directory corresponds to HEAD and remove SVN2GIT_HEAD. | |
225 | You may need to run | |
226 | ||
227 | git-read-tree -m -u SVN2GIT_HEAD HEAD | |
228 | EOM | |
229 | } | |
230 | system('cp', "$git_dir/HEAD", "$git_dir/SVN2GIT_HEAD"); | |
231 | ||
232 | $forward_master = | |
233 | $opt_o ne 'master' && -f "$git_dir/refs/heads/master" && | |
234 | system('cmp', '-s', "$git_dir/refs/heads/master", | |
235 | "$git_dir/refs/heads/$opt_o") == 0; | |
236 | ||
237 | # populate index | |
238 | system('git-read-tree', $last_rev); | |
239 | die "read-tree failed: $?\n" if $?; | |
240 | ||
241 | # Get the last import timestamps | |
242 | open my $B,"<", "$git_dir/svn2git"; | |
243 | while(<$B>) { | |
244 | chomp; | |
245 | my($num,$branch,$ref) = split; | |
246 | $branches{$branch}{$num} = $ref; | |
247 | $branches{$branch}{"LAST"} = $ref; | |
e7e477df | 248 | $current_rev = $num if $current_rev < $num; |
eaf718f3 MU |
249 | } |
250 | close($B); | |
251 | } | |
252 | -d $git_dir | |
253 | or die "Could not create git subdir ($git_dir).\n"; | |
254 | ||
255 | open BRANCHES,">>", "$git_dir/svn2git"; | |
256 | ||
257 | ||
258 | ## cvsps output: | |
259 | #--------------------- | |
260 | #PatchSet 314 | |
261 | #Date: 1999/09/18 13:03:59 | |
262 | #Author: wkoch | |
263 | #Branch: STABLE-BRANCH-1-0 | |
264 | #Ancestor branch: HEAD | |
265 | #Tag: (none) | |
266 | #Log: | |
267 | # See ChangeLog: Sat Sep 18 13:03:28 CEST 1999 Werner Koch | |
268 | #Members: | |
269 | # README:1.57->1.57.2.1 | |
270 | # VERSION:1.96->1.96.2.1 | |
271 | # | |
272 | #--------------------- | |
273 | ||
274 | my $state = 0; | |
275 | ||
276 | sub get_file($$$) { | |
277 | my($rev,$branch,$path) = @_; | |
278 | ||
279 | # revert split_path(), below | |
280 | my $svnpath; | |
281 | $path = "" if $path eq "/"; # this should not happen, but ... | |
282 | if($branch eq "/") { | |
283 | $svnpath = "/$trunk_name/$path"; | |
284 | } elsif($branch =~ m#^/#) { | |
285 | $svnpath = "/$tag_name$branch/$path"; | |
286 | } else { | |
287 | $svnpath = "/$branch_name/$branch/$path"; | |
288 | } | |
289 | ||
290 | # now get it | |
2b5e63d1 MU |
291 | my ($name, $res) = eval { $svn->file($svnpath,$rev); }; |
292 | return () unless defined $name; | |
eaf718f3 | 293 | |
6d281217 | 294 | open my $F, '-|', "git-hash-object", "-w", $name |
eaf718f3 MU |
295 | or die "Cannot create object: $!\n"; |
296 | my $sha = <$F>; | |
297 | chomp $sha; | |
298 | close $F; | |
eaf718f3 MU |
299 | my $mode = "0644"; # SV does not seem to store any file modes |
300 | return [$mode, $sha, $path]; | |
301 | } | |
302 | ||
303 | sub split_path($$) { | |
304 | my($rev,$path) = @_; | |
305 | my $branch; | |
306 | ||
307 | if($path =~ s#^/\Q$tag_name\E/([^/]+)/?##) { | |
308 | $branch = "/$1"; | |
309 | } elsif($path =~ s#^/\Q$trunk_name\E/?##) { | |
310 | $branch = "/"; | |
311 | } elsif($path =~ s#^/\Q$branch_name\E/([^/]+)/?##) { | |
312 | $branch = $1; | |
313 | } else { | |
314 | print STDERR "$rev: Unrecognized path: $path\n"; | |
315 | return () | |
316 | } | |
317 | $path = "/" if $path eq ""; | |
318 | return ($branch,$path); | |
319 | } | |
320 | ||
321 | sub commit { | |
322 | my($branch, $changed_paths, $revision, $author, $date, $message) = @_; | |
323 | my($author_name,$author_email,$dest); | |
324 | my(@old,@new); | |
325 | ||
2b5e63d1 MU |
326 | if (not defined $author) { |
327 | $author_name = $author_email = "unknown"; | |
328 | } elsif ($author =~ /^(.*?)\s+<(.*)>$/) { | |
eaf718f3 MU |
329 | ($author_name, $author_email) = ($1, $2); |
330 | } else { | |
331 | $author =~ s/^<(.*)>$/$1/; | |
332 | $author_name = $author_email = $author; | |
333 | } | |
334 | $date = pdate($date); | |
335 | ||
336 | my $tag; | |
337 | my $parent; | |
338 | if($branch eq "/") { # trunk | |
339 | $parent = $opt_o; | |
340 | } elsif($branch =~ m#^/(.+)#) { # tag | |
341 | $tag = 1; | |
342 | $parent = $1; | |
343 | } else { # "normal" branch | |
344 | # nothing to do | |
345 | $parent = $branch; | |
346 | } | |
347 | $dest = $parent; | |
348 | ||
349 | my $prev = $changed_paths->{"/"}; | |
f0daa628 | 350 | if($prev and $prev->[0] eq "A") { |
eaf718f3 | 351 | delete $changed_paths->{"/"}; |
f0daa628 | 352 | my $oldpath = $prev->[1]; |
eaf718f3 MU |
353 | my $rev; |
354 | if(defined $oldpath) { | |
355 | my $p; | |
356 | ($parent,$p) = split_path($revision,$oldpath); | |
357 | if($parent eq "/") { | |
358 | $parent = $opt_o; | |
359 | } else { | |
360 | $parent =~ s#^/##; # if it's a tag | |
361 | } | |
362 | } else { | |
363 | $parent = undef; | |
364 | } | |
365 | } | |
366 | ||
367 | my $rev; | |
7ee74a99 | 368 | if($revision > $opt_s and defined $parent) { |
eaf718f3 MU |
369 | open(H,"git-rev-parse --verify $parent |"); |
370 | $rev = <H>; | |
371 | close(H) or do { | |
372 | print STDERR "$revision: cannot find commit '$parent'!\n"; | |
373 | return; | |
374 | }; | |
375 | chop $rev; | |
376 | if(length($rev) != 40) { | |
377 | print STDERR "$revision: cannot find commit '$parent'!\n"; | |
378 | return; | |
379 | } | |
380 | $rev = $branches{($parent eq $opt_o) ? "/" : $parent}{"LAST"}; | |
7ee74a99 | 381 | if($revision != $opt_s and not $rev) { |
eaf718f3 MU |
382 | print STDERR "$revision: do not know ancestor for '$parent'!\n"; |
383 | return; | |
384 | } | |
385 | } else { | |
386 | $rev = undef; | |
387 | } | |
388 | ||
f0daa628 | 389 | # if($prev and $prev->[0] eq "A") { |
eaf718f3 MU |
390 | # if(not $tag) { |
391 | # unless(open(H,"> $git_dir/refs/heads/$branch")) { | |
392 | # print STDERR "$revision: Could not create branch $branch: $!\n"; | |
393 | # $state=11; | |
394 | # next; | |
395 | # } | |
396 | # print H "$rev\n" | |
397 | # or die "Could not write branch $branch: $!"; | |
398 | # close(H) | |
399 | # or die "Could not write branch $branch: $!"; | |
400 | # } | |
401 | # } | |
402 | if(not defined $rev) { | |
403 | unlink($git_index); | |
404 | } elsif ($rev ne $last_rev) { | |
405 | print "Switching from $last_rev to $rev ($branch)\n" if $opt_v; | |
406 | system("git-read-tree", $rev); | |
407 | die "read-tree failed for $rev: $?\n" if $?; | |
408 | $last_rev = $rev; | |
409 | } | |
410 | ||
bf267d99 MU |
411 | my $cid; |
412 | if($tag and not %$changed_paths) { | |
413 | $cid = $rev; | |
414 | } else { | |
415 | while(my($path,$action) = each %$changed_paths) { | |
416 | if ($action->[0] eq "A") { | |
417 | my $f = get_file($revision,$branch,$path); | |
418 | push(@new,$f) if $f; | |
419 | } elsif ($action->[0] eq "D") { | |
420 | push(@old,$path); | |
421 | } elsif ($action->[0] eq "M") { | |
422 | my $f = get_file($revision,$branch,$path); | |
423 | push(@new,$f) if $f; | |
424 | } elsif ($action->[0] eq "R") { | |
425 | # refer to a file/tree in an earlier commit | |
426 | push(@old,$path); # remove any old stuff | |
427 | ||
428 | # ... and add any new stuff | |
429 | my($b,$p) = split_path($revision,$action->[1]); | |
430 | open my $F,"-|","git-ls-tree","-r","-z", $branches{$b}{$action->[2]}, $p; | |
431 | local $/ = '\0'; | |
432 | while(<$F>) { | |
433 | chomp; | |
434 | my($m,$p) = split(/\t/,$_,2); | |
435 | my($mode,$type,$sha1) = split(/ /,$m); | |
436 | next if $type ne "blob"; | |
437 | push(@new,[$mode,$sha1,$p]); | |
438 | } | |
439 | } else { | |
440 | die "$revision: unknown action '".$action->[0]."' for $path\n"; | |
441 | } | |
442 | } | |
443 | ||
444 | if(@old) { | |
445 | open my $F, "-|", "git-ls-files", "-z", @old or die $!; | |
446 | @old = (); | |
eaf718f3 MU |
447 | local $/ = '\0'; |
448 | while(<$F>) { | |
449 | chomp; | |
bf267d99 MU |
450 | push(@old,$_); |
451 | } | |
452 | close($F); | |
453 | ||
454 | while(@old) { | |
455 | my @o2; | |
456 | if(@old > 55) { | |
457 | @o2 = splice(@old,0,50); | |
458 | } else { | |
459 | @o2 = @old; | |
460 | @old = (); | |
461 | } | |
462 | system("git-update-index","--force-remove","--",@o2); | |
463 | die "Cannot remove files: $?\n" if $?; | |
eaf718f3 | 464 | } |
eaf718f3 | 465 | } |
bf267d99 MU |
466 | while(@new) { |
467 | my @n2; | |
468 | if(@new > 12) { | |
469 | @n2 = splice(@new,0,10); | |
eaf718f3 | 470 | } else { |
bf267d99 MU |
471 | @n2 = @new; |
472 | @new = (); | |
eaf718f3 | 473 | } |
bf267d99 MU |
474 | system("git-update-index","--add", |
475 | (map { ('--cacheinfo', @$_) } @n2)); | |
476 | die "Cannot add files: $?\n" if $?; | |
eaf718f3 | 477 | } |
eaf718f3 | 478 | |
bf267d99 MU |
479 | my $pid = open(C,"-|"); |
480 | die "Cannot fork: $!" unless defined $pid; | |
481 | unless($pid) { | |
482 | exec("git-write-tree"); | |
483 | die "Cannot exec git-write-tree: $!\n"; | |
eaf718f3 | 484 | } |
bf267d99 MU |
485 | chomp(my $tree = <C>); |
486 | length($tree) == 40 | |
487 | or die "Cannot get tree id ($tree): $!\n"; | |
488 | close(C) | |
489 | or die "Error running git-write-tree: $?\n"; | |
490 | print "Tree ID $tree\n" if $opt_v; | |
491 | ||
492 | my $pr = IO::Pipe->new() or die "Cannot open pipe: $!\n"; | |
493 | my $pw = IO::Pipe->new() or die "Cannot open pipe: $!\n"; | |
494 | $pid = fork(); | |
495 | die "Fork: $!\n" unless defined $pid; | |
496 | unless($pid) { | |
497 | $pr->writer(); | |
498 | $pw->reader(); | |
499 | open(OUT,">&STDOUT"); | |
500 | dup2($pw->fileno(),0); | |
501 | dup2($pr->fileno(),1); | |
502 | $pr->close(); | |
503 | $pw->close(); | |
504 | ||
505 | my @par = (); | |
506 | @par = ("-p",$rev) if defined $rev; | |
507 | ||
508 | # loose detection of merges | |
509 | # based on the commit msg | |
510 | foreach my $rx (@mergerx) { | |
511 | if ($message =~ $rx) { | |
512 | my $mparent = $1; | |
513 | if ($mparent eq 'HEAD') { $mparent = $opt_o }; | |
514 | if ( -e "$git_dir/refs/heads/$mparent") { | |
515 | $mparent = get_headref($mparent, $git_dir); | |
516 | push @par, '-p', $mparent; | |
517 | print OUT "Merge parent branch: $mparent\n" if $opt_v; | |
518 | } | |
519 | } | |
520 | } | |
eaf718f3 | 521 | |
bf267d99 MU |
522 | exec("env", |
523 | "GIT_AUTHOR_NAME=$author_name", | |
524 | "GIT_AUTHOR_EMAIL=$author_email", | |
525 | "GIT_AUTHOR_DATE=".strftime("+0000 %Y-%m-%d %H:%M:%S",gmtime($date)), | |
526 | "GIT_COMMITTER_NAME=$author_name", | |
527 | "GIT_COMMITTER_EMAIL=$author_email", | |
528 | "GIT_COMMITTER_DATE=".strftime("+0000 %Y-%m-%d %H:%M:%S",gmtime($date)), | |
529 | "git-commit-tree", $tree,@par); | |
530 | die "Cannot exec git-commit-tree: $!\n"; | |
531 | } | |
532 | $pw->writer(); | |
533 | $pr->reader(); | |
eaf718f3 | 534 | |
bf267d99 | 535 | $message =~ s/[\s\n]+\z//; |
eaf718f3 | 536 | |
bf267d99 MU |
537 | print $pw "$message\n" |
538 | or die "Error writing to git-commit-tree: $!\n"; | |
539 | $pw->close(); | |
eaf718f3 | 540 | |
bf267d99 MU |
541 | print "Committed change $revision:$branch ".strftime("%Y-%m-%d %H:%M:%S",gmtime($date)).")\n" if $opt_v; |
542 | chomp($cid = <$pr>); | |
543 | length($cid) == 40 | |
544 | or die "Cannot get commit id ($cid): $!\n"; | |
545 | print "Commit ID $cid\n" if $opt_v; | |
546 | $pr->close(); | |
eaf718f3 | 547 | |
bf267d99 MU |
548 | waitpid($pid,0); |
549 | die "Error running git-commit-tree: $?\n" if $?; | |
550 | } | |
eaf718f3 | 551 | |
f02b3eba MU |
552 | if(not defined $dest) { |
553 | print "... no known parent\n" if $opt_v; | |
554 | } elsif(not $tag) { | |
eaf718f3 MU |
555 | print "Writing to refs/heads/$dest\n" if $opt_v; |
556 | open(C,">$git_dir/refs/heads/$dest") and | |
557 | print C ("$cid\n") and | |
558 | close(C) | |
559 | or die "Cannot write branch $dest for update: $!\n"; | |
eaf718f3 | 560 | } |
eaf718f3 MU |
561 | |
562 | if($tag) { | |
563 | my($in, $out) = ('',''); | |
564 | $last_rev = "-" if %$changed_paths; | |
565 | # the tag was 'complex', i.e. did not refer to a "real" revision | |
566 | ||
f02b3eba | 567 | $dest =~ tr/_/\./ if $opt_u; |
eaf718f3 MU |
568 | |
569 | my $pid = open2($in, $out, 'git-mktag'); | |
570 | print $out ("object $cid\n". | |
571 | "type commit\n". | |
f02b3eba | 572 | "tag $dest\n". |
eaf718f3 MU |
573 | "tagger $author_name <$author_email>\n") and |
574 | close($out) | |
f02b3eba | 575 | or die "Cannot create tag object $dest: $!\n"; |
eaf718f3 MU |
576 | |
577 | my $tagobj = <$in>; | |
578 | chomp $tagobj; | |
579 | ||
580 | if ( !close($in) or waitpid($pid, 0) != $pid or | |
581 | $? != 0 or $tagobj !~ /^[0123456789abcdef]{40}$/ ) { | |
f02b3eba | 582 | die "Cannot create tag object $dest: $!\n"; |
eaf718f3 | 583 | } |
eaf718f3 | 584 | |
f02b3eba MU |
585 | open(C,">$git_dir/refs/tags/$dest") and |
586 | print C ("$tagobj\n") and | |
eaf718f3 | 587 | close(C) |
f02b3eba | 588 | or die "Cannot create tag $branch: $!\n"; |
eaf718f3 | 589 | |
f02b3eba | 590 | print "Created tag '$dest' on '$branch'\n" if $opt_v; |
eaf718f3 | 591 | } |
e7e477df MU |
592 | $branches{$branch}{"LAST"} = $cid; |
593 | $branches{$branch}{$revision} = $cid; | |
594 | $last_rev = $cid; | |
595 | print BRANCHES "$revision $branch $cid\n"; | |
596 | print "DONE: $revision $dest $cid\n" if $opt_v; | |
eaf718f3 MU |
597 | } |
598 | ||
599 | my ($changed_paths, $revision, $author, $date, $message, $pool) = @_; | |
600 | sub _commit_all { | |
601 | ($changed_paths, $revision, $author, $date, $message, $pool) = @_; | |
f0daa628 MU |
602 | my %p; |
603 | while(my($path,$action) = each %$changed_paths) { | |
604 | $p{$path} = [ $action->action,$action->copyfrom_path, $action->copyfrom_rev ]; | |
605 | } | |
606 | $changed_paths = \%p; | |
eaf718f3 | 607 | } |
f0daa628 | 608 | |
eaf718f3 MU |
609 | sub commit_all { |
610 | my %done; | |
611 | my @col; | |
612 | my $pref; | |
613 | my $branch; | |
614 | ||
615 | while(my($path,$action) = each %$changed_paths) { | |
616 | ($branch,$path) = split_path($revision,$path); | |
617 | next if not defined $branch; | |
618 | $done{$branch}{$path} = $action; | |
619 | } | |
620 | while(($branch,$changed_paths) = each %done) { | |
621 | commit($branch, $changed_paths, $revision, $author, $date, $message); | |
622 | } | |
623 | } | |
624 | ||
625 | while(++$current_rev < $svn->{'maxrev'}) { | |
626 | $svn->{'svn'}->get_log("/",$current_rev,$current_rev,$current_rev,1,1,\&_commit_all,""); | |
627 | commit_all(); | |
3ef378a6 MU |
628 | if($opt_l and not --$opt_l) { |
629 | print STDERR "Exiting due to a memory leak. Repeat, please.\n"; | |
630 | last; | |
631 | } | |
eaf718f3 MU |
632 | } |
633 | ||
634 | ||
635 | unlink($git_index); | |
636 | ||
637 | if (defined $orig_git_index) { | |
638 | $ENV{GIT_INDEX_FILE} = $orig_git_index; | |
639 | } else { | |
640 | delete $ENV{GIT_INDEX_FILE}; | |
641 | } | |
642 | ||
643 | # Now switch back to the branch we were in before all of this happened | |
644 | if($orig_branch) { | |
3ef378a6 | 645 | print "DONE\n" if $opt_v and (not defined $opt_l or $opt_l > 0); |
eaf718f3 MU |
646 | system("cp","$git_dir/refs/heads/$opt_o","$git_dir/refs/heads/master") |
647 | if $forward_master; | |
648 | unless ($opt_i) { | |
649 | system('git-read-tree', '-m', '-u', 'SVN2GIT_HEAD', 'HEAD'); | |
650 | die "read-tree failed: $?\n" if $?; | |
651 | } | |
652 | } else { | |
653 | $orig_branch = "master"; | |
3ef378a6 | 654 | print "DONE; creating $orig_branch branch\n" if $opt_v and (not defined $opt_l or $opt_l > 0); |
eaf718f3 MU |
655 | system("cp","$git_dir/refs/heads/$opt_o","$git_dir/refs/heads/master") |
656 | unless -f "$git_dir/refs/heads/master"; | |
657 | unlink("$git_dir/HEAD"); | |
658 | symlink("refs/heads/$orig_branch","$git_dir/HEAD"); | |
659 | unless ($opt_i) { | |
660 | system('git checkout'); | |
661 | die "checkout failed: $?\n" if $?; | |
662 | } | |
663 | } | |
664 | unlink("$git_dir/SVN2GIT_HEAD"); | |
665 | close(BRANCHES); |